Dyfyniad APA

Gerngross, G., & Puchta, H. Playway to english: Pupil´s book 2.

Dyfyniad Arddull Chicago

Gerngross, Günter, and Herbert Puchta. Playway to English: Pupil´s Book 2.

Dyfyniad MLA

Gerngross, Günter, and Herbert Puchta. Playway to English: Pupil´s Book 2.

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